Buffing wheel



"Sept. 20, 1938. 1.. w. KRElLlCK ET AL- 2,130,849

BUFFING WHEEL Filed Jan. 13, 1936 Patented Sept. 20, 1938 UNITED STATES BUFFING WHEEL Lester W. Kreilick and Herbert R. Taylor, Fremont, Ohio, assignors to The Yerges Manufacturing Company, Fremont, Ohio, 3. corporation of Ohio Application January 13, 1936, Serial No. 58,891

1 Claim.

This invention relates to fabric of warp and woof assembled into sections for buffing wheels.

This invention has utility when incorporated in plural ply bufling sections of bias rings or opencenter disks.

Referring to the drawing:

Fig. 1 is a fragmentary view of yard goods, fabric portion from which bias edge warp and woof stock may be obtained;

Fig. 2 is a section of a piece of said stock formed into a tube;

Fig. 3 is a view-of a nesting of say three tubes, parts being broken away;

Fig. 4 is a diagram of the nesting at the medial fold, which in practice is closely compacted at the return bend;

Fig. 5 is a side view of an open-centered disk produced from nested tubular portions of the fabric, parts being broken away;

Fig. 6 is a side elevation'of the core disk for the open-center fabric;

Fig. 7 is an edge view, distributed, of the assembly into a section; Fig. 8 is a side view of the completed section; and

Fig. 9 is a detail view of the mounting and manner of assembly of the buffing wheel for use.

Yardage stock I of the desired fineness or coarseness of warp and woof, say canvas duck, may have diagonal markings 2 thereon for severance line 3 in producing bias edges 4, 5, on the opposite sides of strip 6. This strip 6 may have its termini assembled by stitching I in producing tube 8. A group of these tubes 8, say three thereof, may be medially folded at 9, and as still in cylindrical form, produce a tube ill of half the length of the flat or unfolded tube; the midi'old or turn bend 9 being longitudinally mid-way the length of the unfolded tube. The three tube type is more loose and more readily self-venti lating than the single tube per ply, while the two tube per ply is in-between. It is thus seen that the groupings per ply is a control for tightness of the disk.

Such grouping of the plurality of plies 8 having medial fold 9 are thus assembled into the tube in. The fold side 9 is longitudinally reduced by folds or pleating which in practice flares out transversely of the tube to the extent not only of changing the tubular stock from tube into disk form, but to some extent reducing the diameter of the outwardly bias edge portions. Accordingly, these edges 4, 5, are of major reaches ,II and minor reaches i2, connected by radially extending curve portions l3, l4, providing a retreatingly, undulous course for these bias edges in a. cylindrical set-up from the tubular stock. This retreatingly undulous periphery of rounded corner overhanging Z-form has the shorter reach i2 gradually increased from the periphery toward the central opening I5 of disk [6. In this assembly the folds are initially centrally anchored by stitching I! as one nest from the tube ID is assembled into a disk Hi. This open-center disk It may have built thereon additional disks by stitching l8 simultaneously effecting the fold anchoring and holding of the assembly. For say two of the open-center disks Hi, this would mean twelve undulous bias edges for this section.

Central stiffness is supplied by rigid disk or hub I9, which may be of paper fiber ply, as of heavy cardboard. With such a disk IS in the opening l5, fabric plies 20 may have stitch assembly H with the fabric open center disks I6 and stitch assembly 22 with the rigid disk l9. There is, accordingly, thus completed a section 23 which may be assembled on shaft 24 passing through central opening 25 in the disks I9, 20, of less diameter than the open-center disks i6 and of greater diameter than the disk l9. These disks 23 may be abutted by flange 26 on the shaft 24 and clamped by additional opposing washer or disk 2! held by nut 28. The shaft 24 is mounted in bearings 29 shown provided with driving pulley 30 thereon driven by belt 3|.

The undulous bias stock with the stitching 1 of the respective tubes staggered, results in a wheel which has a periphery symmetrical as 'to short threads therefrom due to the bias continuity. The undulous form is a contributing factor of approximately constant radial resistance throughout the circumference extent, although of a desirable cushioned character. These are factors contributing materially to the efliciency and uniformity of action of the wheel, with factors of rare value and symmetry throughout in the endless edge structure as herein shown and described.

What is claimed and it is desired to secure by Letters Patent is:

The method of making a multilayered fabric buff comprising, cutting strips of fabric of the proper length and width on a bias with respect to the weave of the fabric, sewing the ends of said strips together to form hollow cylinders of said strip, nesting a. plurality of said hollow cylinders in concentric relationship, folding said nested 7 rality of-said. annular disks upon a supporting hub.

LESTER W. KREILICK. HERBERT R. TAYLOR. 

